20345400

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:238

約数の個数: 144

約数和(自身を含む): 69638400

約数和(自身を除く): 49293000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 89, 90, 100, 120, 127, 150, 178, 180, 200, 225, 254, 267, 300, 356, 360, 381, 445, 450, 508, 534, 600, 635, 712, 762, 801, 890, 900, 1016, 1068, 1143, 1270, 1335, 1524, 1602, 1780, 1800, 1905, 2136, 2225, 2286, 2540, 2670, 3048, 3175, 3204, 3560, 3810, 4005, 4450, 4572, 5080, 5340, 5715, 6350, 6408, 6675, 7620, 8010, 8900, 9144, 9525, 10680, 11303, 11430, 12700, 13350, 15240, 16020, 17800, 19050, 20025, 22606, 22860, 25400, 26700, 28575, 32040, 33909, 38100, 40050, 45212, 45720, 53400, 56515, 57150, 67818, 76200, 80100, 90424, 101727, 113030, 114300, 135636, 160200, 169545, 203454, 226060, 228600, 271272, 282575, 339090, 406908, 452120, 508635, 565150, 678180, 813816, 847725, 1017270, 1130300, 1356360, 1695450, 2034540, 2260600, 2543175, 3390900, 4069080, 5086350, 6781800, 10172700, 20345400]

約数ペア:

[(1, 20345400), (2, 10172700), (3, 6781800), (4, 5086350), (5, 4069080), (6, 3390900), (8, 2543175), (9, 2260600), (10, 2034540), (12, 1695450), (15, 1356360), (18, 1130300), (20, 1017270), (24, 847725), (25, 813816), (30, 678180), (36, 565150), (40, 508635), (45, 452120), (50, 406908), (60, 339090), (72, 282575), (75, 271272), (89, 228600), (90, 226060), (100, 203454), (120, 169545), (127, 160200), (150, 135636), (178, 114300), (180, 113030), (200, 101727), (225, 90424), (254, 80100), (267, 76200), (300, 67818), (356, 57150), (360, 56515), (381, 53400), (445, 45720), (450, 45212), (508, 40050), (534, 38100), (600, 33909), (635, 32040), (712, 28575), (762, 26700), (801, 25400), (890, 22860), (900, 22606), (1016, 20025), (1068, 19050), (1143, 17800), (1270, 16020), (1335, 15240), (1524, 13350), (1602, 12700), (1780, 11430), (1800, 11303), (1905, 10680), (2136, 9525), (2225, 9144), (2286, 8900), (2540, 8010), (2670, 7620), (3048, 6675), (3175, 6408), (3204, 6350), (3560, 5715), (3810, 5340), (4005, 5080), (4450, 4572)]